Improvement in cotton-gins



1 titled giant @anni dtyiyirr,

SAMUEL z. HALL, 0E CSSINING,

LEWIS, CE SING SING, CONNECTICUT.

NEW YORK, ASSIGNOR TO HIMSELF, STARKES NEW YORK, AND ELIAS B. BROWN, OFSTONINGTON,

Letters PatentNo. 105,070, dated Juli/5, 1870.

To all whom it may concern:

Be it known that'l, SAMUEL ZXHALL, of Ossining, .Vestchester county, in the State of N ew York, have invented certain new and useful Improvements in Cotton-Gins; and I hereby declare the following to be a full and exact description thereof', reference being had to the accompanying drawing forming part of this specification, in which- Figure 1 is a representation of a central vertical section of my invention.

Figure 2 is a 'side view, showing the method of driving the feeding-cylinder, bya belt from a pulley on the Saw-shaft.

Figure 3 is a view of the opposite side, showing the method of varying the speed of the carrying-rollers.

Similar letters refer to similar parts in the dilferent figures.

My invention relates to cotton-gms, and consists in certain improvements hereafter described, wherebyit is designed to increase the eiciency and lessen the cost of construction thereof.

My cotton-gin is supported by the frame A, upon which rests the hopper B, the sides of which project in front, forming, by means of the cheeks b b, bearings for the shaft of the feeding-cylinder and protection t0 the ends thereof.

The nnginned cotton, having been placed in the hopper B, is carried forward bythe rollers D D, in the bottom thereof, toward the feeding-cylinder E.

The foremost of these carrying-rollers d is made somewhat smaller in diameter than the others, with the object 'of conveying the cotton further under thefeeding-cylinder, and thereby preventing the loss of much good cotton with the hulls, pods, and trash, as` they fall between this front roller and the feedingcylinder.

\Vhen all of the rollers are made of the same diameter, a great many good locks of cotton fall through, unless the trash-board is moved up very close, and, if this is done, the hard pods, pebbles, &c., are apt to be fed by thecylinder E, with the good cotton, over into the breast of the gin.

The small roller d is designed to obviate allA difficulty. The main portion of the seed-cotton rests upon and is lifted from the large roller in rear of it, and such good locks as may not be taken up fall on the small front roller d, whence they are taken by the teeth of the cylinder and fed into the breast. Hence the trashboard may be further removed, and all stones, sticks, and'hard substances readily discharged beneath the feeder.

The rollersD D d are connected by gearing, as shown on g. 2 of the drawing, and are operated by means of pawls P and Pand ratchet-wheels m', attached to the ends of thc'small roller d and first large roller D, as shown on fig. 3'of the drawing. I The pawls are attached to the lever l, slotted in thel end, n .nd operated by the crank-pin It, ou the disk K, secured to the endofthe shaft of the cylinder Whenit is desired to feed slowly, the lower pawl P is pinned back, allowing the upper pawl P only to operate in connection with the smaller ratchet-wheel, attached to the end of the small front roller al. The cotton will be fed faster when the lower pawl P is allowed to engage with the larger ratchet-wheel.

The feeding-cylinder E consists of two disks or heads, secured to the shaft e. Bars F and slats G are secured alternately around the heads to form the cylinder. The teeth are' driven into the bars, and sharpened before the bars are secured to the heads of the cylinder. The spaces between the bars are filled in with thin slats,l narrow interstices being left between for the dust to fall through. Heretofore the feeding-` cylinder has been covered with wire-cloth, rendering it necessary, in the construction thereof, to sharpen the teeth after they have been driven into the cylinder. By employing the cheek-pieces b b the length of the cylinder can be increased, so that it will take up cotton at the cxtreme ends'of the rollers. In order to prevent the feeding-cylinder from carrying over bunches so large that t-hey might choke the breastof the gin, the regulating-board H is arranged to slide in grooves formed in the walls of the hopper. This reg* mating-board may be adjusted in proper position, and then 'secured by means of a thumb-nut on the end of the rod m, arranged to connect the walls of the hopper. A pulley, h, is attached to the end of the cylinder-shaft, and is operated by a belt from a pulley, o', on the saw-shaft, to which the motive power is directly applied.

The cotton passes from the feeding-cylinder into the breast M, where it is ginned by the saws. The breast M is made adjustable by means of the hinged board n, provided with pins or set-screws z.' z, arranged to slide in the slots lr r, formed in the frame. This hinged bar n is also connected, by means of the pivoted arms or links 2: t, with the centers s' s', below and in rear of the saw-shaft. throw the teeth of the saws further into the breast,

the ribs thereof are moved in a direction downward and backward around the saws, their curved path being regulated by the radial arms or links c o, above described.

R R designate the brushes attached tothe cylinder R'. These brushes take the ginncd cotton from the teeth of the saws. z

Fans L L, of rigid or flexible material, are arranged between the rows of brushes on the cylinder R', by the action of which the cotton is blown out of the gin at the point S."

Hence, when it is desired to What I claim as my invention, and desire to secure by Letters Patent, is- 4 1. The small leading-roller d, in combination with the carrying-rollers D D, of larger diameter, in the feeding-hopper of a cotton-gin, when constructed and arranged to operate as specified.

2. rJhe feeding-cylinder E, when constructed of alternate tooth-bars, F, and thin slats, G, in the ma- Y ner specified.

3. In combination with the slotted lever l, bearing the adjustable pawls P and P', the ratchet-wheels m', attached to the two front rollers d and D, when constructed and arranged to vary the speed of revolution, as specified.

4. The adjustable breast M, arranged to move downward and backward around the saws by means ofthe slots fr, hinged bar n, and radial arms v, pvoted to centers s' below and in rear of the" saw-shaft, as

spedfed.

. SAMUEL Z. HALL.

lVitnesses:

J. Dams, Jr.,

J. R. No'rTINGHAM. 

